Tire-setter.



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(Application filed nw. 7, .1898.)

(Nu Model.)I

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o., wAsHlNu'roN n c UNITED STATES PATENT OFFICEe CHARLES SIDNEY SMITH, OF ST/JOIINSBURY, VERMONT.

TIRE-SETTER.

SPECIFICATION forming part of Letters Patent No. 637,S34,`dated November 28, 1899. Application iiled December '7, 1898. Serial No. 6598,504. (No model.)

To if/ZZ whom t i12/tty concern:

Be it known that I, CHAnLEs SIDNEY SMITH, a citizen of the United States, residing at St. Johnsbury, in the county of Caledonia and State of Vermont, have invented a new and useful TireSetting Machine, of which the following-is a specication.

My invention relates to that class of tiresetting machines in which a series of radiallyarranged compression-jaws are operated by duid-pressure to compress or upset the tire or band upon a wheel or hub.

The object of the invention is to provide a machine of this character which will be sim ple in construction, effective and quick in operation, and frictionless to the highest degree. This object I attain by the mechanism shown in the accompanying drawings, in which- Figure 1 is a transverse vertical section through my improved machine with a wheel in position. Fig. 2 is an enlarged detail view showing the ball-bearin g connection between one of the compression-levers and the top of the operating-cylinder. Fig. 3 is a detail view of a modified connection between one of the compression-levers and one -of the compression-bars and Fig. 4 is a plan of the machine, a portion being broken away. Y

A is the base of the machine, provided with a circularly-arranged series of uprights or posts 5, securely held by inclined braces a o2, as shown in Fig. l, and on the upper ends of these posts or uprights is secured a ring or annular top plate 2, provided at intervals in any suitable manner with fulcrum-bearings 2, over which hook the outwardly-proj ectin g hooked upper ends 1a of the upwardlypro jecting members of the angle-levers 1, the horizontally-extending long arms of said levers extending radially inward and resting loosely upon the top of the operatingcylinder 9. This cylinder 9 moves vertically upon a stationary cylinder l0, secured upon the base A concentric with the ring 2. The space l1 between the cylinder ends is supplied wit-h any suit-able fluid under pressure by means of a pipe l2, which extends up through the stationary cylinder, as shown in.Fig. l.

The top of the cylinder 9 is provided with radial grooves 16, and the under faces of the levers 1 are provided with longitudinal grooves l5, registering with the grooves 16, and a ball or roller la is placed in every pair of such registering grooves, as shown in Fig. 2, so that friction will be relieved at these points.

S is a small ring concentric with the ring 2 and in a lower horizontal plane. This ring S is mounted on the upper ends of a circularlylarranged inner series of uprights or posts VS', suitably braced to the base, as at a9, and the upper face of this ring Sis preferably inclined .upwardly and inwardly from its outer edge, as shown in Fig. 1, and provided with radial grooves in such inclined face to receive the balls or rollers 7.

3 designates the radially-arranged horizontal series of compression-bars, havinga knifeedge bearing 3b at the outer sides of their outer shouldered ends 3a with the adjacent inner edges of the vertical members of the compression-levers l and also connected to said levers by the pivoted links 4, as shown in Fig. l, or by the socket-like connection 4a. (Shown in Fig. 3.) The inner ends of the compression-bars 3 are beveled, as shown at 6, to correspond with the bevel of their supporting-ring S, and their lower beveled ends are longitudinally grooved, as shown in dotted lines, Fig. l, to receive balls or rollers 7. This beveling of ring S and bars 3 causes the latter to be maintained in a horizontal position as they are forced inwardly and upwardly by the levers 1, as shown in dotted lines, Fig. 1.

The wheel or other circular part 13 having a bandor tire to be upset thereon is placed upon the upper sides of the compression-bars 3 and within the circle described by the seriesof shoulders 3a andfiuid under pressure is admitted to the space 1l. The cylinder 9 will be forced upwardly, carrying with it the inner ends of levers 1, which slide inwardly on the top 'of the cylinder. The upward movement of the levers l causes their upwardly-projecting ends to move inwardly against the horizontally-sliding bars 3, which support the article operated upon, and the shouldered ends 3n of these bars grasp the cold tire or band and compress it or upset it upon the rim of the wheel or other surface. As the bars 3 move inwardly their outer shouldered ends are also slightly raised and the inner inclined ends 6 will ride up the inclined face of ring 8 or inclined surfaces IOO formed thereon, and so the horizontal position of the bars will be maintained. When the cylinder 9 is relieved of pressure,the parts will resume their normal position, as shown in full lines, Fig. l. Y

I do not intend confining myself to the particular details shown,as various modifications may be made without departing from the scope of my invention. l

What I claim isl. The combination with a circularly-arranged series of angle-levers fulcrumed at the upper outer portions of their upwardlyextending members upon a suitable support, and having their horizontally-extendin g members extending radially inward, an operating mechanism engaging the converging inner ends of said levers, and horizontal compression-bars Vhaving shouldered outer ends to receive a wheel or other body within them, and said outer ends bearing against the inner sides of the vertically-extending members of the levers below their fulcrums, and asupport on which the compression-bars slide at their inner converging ends.

2. The combination with a horizontal ring mounted on suitable supports and a series of angle-levers having outwardly-hooked upper ends or fulcrums, engaging bearings on said ring, and having their long arms extending radially inward, an operating mechanism engaging the converging inner ends of said levers, of a series of horizontal compressionbars having shouldered outer ends engaging the inner edges of said levers below said hooks or fulcrums and supported from said levers, an inner lower concentric ring on which the converging inner ends of the bars rest and slide; substantially as described. y

3. The combination with a horizontal ring, the series of angle-levers having outwardlyprojecting fulcrum-hooks at the upper ends of their vertically-extending arms fulcrumed on the ring; the horizontal long arms of the lever extending inwardly and provided with an operating mechanism, of a series of radial compression-bars operatively engaged at their outer shouldered ends by the inner edges of the said vertically-extending arms, and an inner lower horizontal ring supporting the inner converging ends of the bars; the adjacent surfaces of the bars and inner ring being beveled to cause the bars to maintain their horizontal position; substantially as described.

4. The combination with the horizontal ring,

the angle-levers fulcrumed at the upper ends of their vertically-extending arms on bearings at the inner periphery of the ring, and having their longer arms extending horizontally inward, and a vertically-movable cylinder on which the inner converging ends of said arms rest, of a horizontal series of radial compression-bars engaged at their outer shouldered ends by the inner edges of said angle-levers below the fulcrums thereof, and an inner lower horizontal ring on which the inner converging ends 'of said bars rest and slide.

5.. The combination with the horizontal ring and the angle-levers fulcrumed thereon with their horizontally-extending long arms extending inwardly, and an operating mechanism engaging said ends, of a series of horizontal compression-arms having a knife-edge bearing at their outer shouldered ends with the' inner vertically-extending edges of the short arms of said levers, and an inner lower horizontal ring on which the inner converging ends of the bars rest and slide inwardly and upwardly.

6. The combination with the horizontal ring and the angle-levers fulcrumed thereon with their lower long arms extending horizontally inward and an operating mechanism engaging the inner converging ends of said levers, of a series of horizontal compression-bars having a socketed and knife-edge connection at their outer ends with the inner edges of the vertically-extending short arms of said an gledevers as shown at 4, and an inner lower horizontal ring on which the inner converging ends of the bars rest and slide.

7. The combination with the outer upper horizontal ring, the angle-levers fulcrumed thereon at their upper ends, and having their longer arms extending horizontally inward, an operating-cylinder over which the converging ends of the levers project and balls or rollers interposed between said lever ends and cylinder, of the horizontal compressionarms engaged at their outer ends by the inner edges of the vertically-extending arms of said levers below their fulcrums, and an inner lower horizontal ring supporting the inner converging ends of the compression-bars the adjacent surfaces of the rings and bars being correspondingly inclined and separated by balls or rollers.

CHARLES SIDNEY SMITH.

Witnesses:

CoRRIE H. SMITH, CORRALIN L. SMITH.

IOO 

